let Hw = (num) => {
    if (num < 10) return false;
    num = num.toString().split('');
    // num = [...
    //     `${num}`
    // ]
    return num.join(',') != [...num].reverse().join(',') ? false : true;
}
console.log(Hw(-123));
console.log(Hw(-101));
console.log(Hw(123));
console.log(Hw(121));
console.log(Hw(232));